It runs great on iOS with no runtime errors etc, also on the simulator. But I don’t know why it is returning some errors while trying to test it on a Galaxy Tab 4 running on 4.4.2. Here’s what I get:
(after going to main menu from the canvas)
(after selecting some picture to paint (it doesn’t happen on all pics))
it also returns an error after leaving the device screen sleep, then waking it again.
Can you post the code where you get those errors?
Well uhm, the first is coming from the widget library as you can see, the second…
[lua]
function toggleBtns( activeBtnId )
local this_btn = nil
local isActive = false
for i=1, btns_sprt.numChildren do
this_btn = btns_sprt[i]
if ( this_btn ~= nil ) then
isActive = ( i == activeBtnId )
this_btn[1].isVisible = isActive
this_btn[2].isVisible = not isActive
end
end
end
[/lua]
Hi @waelisnothing,
For #1, we’ll still need to see your widget code and perhaps some of the surrounding code as well. The error hints that you’re attempting to “fill” an object which doesn’t exist.
For #2, this means that “btns_sprt.numChildren” is not a display group containing children, so it’s not giving you back a number, and thus the Lua “for” loop is failing.
Best regards,
Brent
I am using the “widget-v1” lib
Menu button:
[lua]
local goMenu = function()
– Handler that gets notified when the alert closes
local function onComplete( event )
if “clicked” == event.action then
local i = event.index
if 1 == i then
createBlankBase()
display.getCurrentStage():setFocus(nil)
storyboard.gotoScene( “mainMenu”, “crossFade”, 400 )
elseif 2 == i then
– Do nothing; dialog will simply dismiss
end
end
end
– Show alert with Options. Trigger the wipe action * Return to Menu if the user clicks the 1st button.
local alert = native.showAlert( “Return to Menu?”, “Are you sure you want to return to the Menu?”, { “Yes”, “Cancel” }, onComplete )
return true
end
local menuButton = widget.newButton{
left = configPanel.x+87,
top = configPanel.y-85,
default = guiImages…“buttonMenuOff.png”,
over = guiImages…“buttonMenuOn.png”,
onRelease = goMenu
}
[/lua]
Well why #2 works flawlessly on iOS but not Android?
Hello,
Error #2 isn’t coming from the button widget, it’s coming from “slider.lua”…
Brent
Here’s the slider.lua code, but I asked for clarification, why does it work on iOS, but not on Android?
[lua]
module( …, package.seeall )
– Slider, created by Microsheep, microsheep.com
– You can see it working in my game - Fingerless 3D
– Free to use, feel free to change, but please share it with the community
– vars
local slider_sprt = nil
local slides_sprt = nil
local btns_sprt = nil
local isDragging = false
local currSlideIndex = 1
local startPosX = 0
local offsetPosX = 0
local lastPosX = 0
local lastTimeMsec = 0
local dX = 0
local slide_twn = nil
– forward declerations
local touchCb
local slideEndCb
local toggleBtns
local startDrag
local endDrag
local drag
local slideTo
–##################################################################################################
– PUBLIC METHODS
–##################################################################################################
function init()
– vars
slider_sprt = nil
slides_sprt = nil
btns_sprt = nil
isDragging = false
currSlideIndex = 1
startPosX = 0
offsetPosX = 0
lastPosX = 0
lastTimeMsec = 0
dX = 0
slide_twn = nil
– slider_sprt
slider_sprt = display.newGroup()
– slides_sprt
slides_sprt = display.newGroup()
slider_sprt:insert( slides_sprt )
– btns_sprt
btns_sprt = display.newGroup()
slider_sprt:insert( btns_sprt )
– events
slides_sprt:addEventListener( “touch”, touchCb )
--Runtime:addEventListener( “touch”, touchCb )
end
function dispose()
– events
slides_sprt:removeEventListener( “touch”, touchCb )
--Runtime:removeEventListener( “touch”, touchCb )
– cancel tween
if ( slide_twn ~= nil ) then
transition.cancel( slide_twn )
slide_twn = nil
end
– btns_sprt
local thisBtn = nil
while ( btns_sprt.numChildren > 0 ) do
thisBtn = btns_sprt[1]
for j=1, thisBtn.numChildren do
thisBtn:remove( 1 )
end
thisBtn:removeEventListener( “tap”, tapCb)
btns_sprt:remove( thisBtn )
end
slider_sprt:remove( btns_sprt )
btns_sprt = nil
– slides_sprt
slides_sprt = display.newGroup()
local thisSlide_sprt = nil
while ( slides_sprt.numChildren > 0 ) do
--thisSlide_sprt.dispose()
thisSlide_sprt = slides_sprt[1]
slides_sprt:remove( thisSlide_sprt )
end
slider_sprt:remove( slides_sprt )
slides_sprt = nil
– slider_sprt
– vars
end
function getSprite()
return slider_sprt
end
function getSlide( slideIndex )
return slides_sprt[slideIndex]
end
function addSlide( slide_sprt, btn_sprt )
– slide
slides_sprt:insert( slide_sprt )
slide_sprt.x = (slides_sprt.numChildren - 1) * display.contentWidth
– btn
if ( btn_sprt ~= nil ) then
btns_sprt:insert( btn_sprt )
btn_sprt:addEventListener( “tap”, tapCb)
toggleBtns( 1 )
end
end
–##################################################################################################
– PRIVATE METHODS
–##################################################################################################
function touchCb( evt )
if (evt.phase == “began”) then
startDrag( evt )
elseif (evt.phase == “ended”) then
endDrag( evt )
else
drag( evt )
end
end
function slideEndCb( evt )
– currSlideIndex
currSlideIndex = 1 + math.floor( (-slides_sprt.x + 0.5 * display.contentWidth) / display.contentWidth )
– offsetPosX
offsetPosX = slides_sprt.x
– btns
toggleBtns( currSlideIndex )
end
function tapCb( evt )
local btnId = evt.target.id
--toggleBtns( btnId )
slideTo( btnId, 2500 )
end
function toggleBtns( activeBtnId )
local this_btn = nil
local isActive = false
for i=1, btns_sprt.numChildren do
this_btn = btns_sprt[i]
if ( this_btn ~= nil ) then
isActive = ( i == activeBtnId )
this_btn[1].isVisible = isActive
this_btn[2].isVisible = not isActive
end
end
end
function startDrag( evt )
isDragging = true
– startPosX
--startPosX = evt.xStart
startPosX = evt.x
– offsetPosX
offsetPosX = slides_sprt.x
– lastPosX and lastTimeMsec
lastPosX = evt.x
lastTimeMsec = system.getTimer()
– cancel tween
if ( slide_twn ~= nil ) then
transition.cancel( slide_twn )
slide_twn = nil
end
end
function endDrag( evt )
isDragging = false
– calc speed
local dT = system.getTimer() - lastTimeMsec
if (dT < 10) then dT = 10 end
local speed = dX / ( 0.001 * dT )
– targetSlideIndex
local targetSlideIndex = currSlideIndex
if (math.abs(speed) > 500) then
– speed
targetSlideIndex = targetSlideIndex - (speed / math.abs(speed))
else
targetSlideIndex = 1 + math.floor( (-slides_sprt.x + 0.5 * display.contentWidth) / display.contentWidth )
speed = 1000
end
– min / max slide index
if ( targetSlideIndex <= 0 or targetSlideIndex > slides_sprt.numChildren) then
targetSlideIndex = currSlideIndex
speed = 1000
end
– slide tween
slideTo( targetSlideIndex, speed )
end
function drag( evt )
if ( false == isDragging ) then
startDrag( evt )
startPosX = evt.x
end
– lastPosX and lastTimeMsec
dX = evt.x - lastPosX
lastPosX = evt.x
lastTimeMsec = system.getTimer()
– pos
--slides_sprt.x = offsetPosX + evt.x - evt.xStart
slides_sprt.x = offsetPosX + evt.x - startPosX
end
function slideTo( targetSlideIndex, speed )
– cancel tween
if ( slide_twn ~= nil ) then
transition.cancel( slide_twn )
slide_twn = nil
end
– tween
local targetPosX = (targetSlideIndex - 1) * display.contentWidth
local timeMsec = 1000 * math.abs( (slides_sprt.x + targetPosX) / speed )
--slide_twn = transition.to( slides_sprt, { x = -targetPosX, time = timeMsec, transition = easing.inOutQuad, onComplete = slideEndCb } )
slide_twn = transition.to( slides_sprt, { x = -targetPosX, time = timeMsec, onComplete = slideEndCb } )
end
[/lua]
Hi @waelisnothing,
I don’t really know why it would fail on Android but not iOS, unless there’s some issue with your “module( …, package.seeall )” inclusion. This should not be used any longer, as it was long ago deprecated in Lua.
Brent
Can you post the code where you get those errors?
Well uhm, the first is coming from the widget library as you can see, the second…
[lua]
function toggleBtns( activeBtnId )
local this_btn = nil
local isActive = false
for i=1, btns_sprt.numChildren do
this_btn = btns_sprt[i]
if ( this_btn ~= nil ) then
isActive = ( i == activeBtnId )
this_btn[1].isVisible = isActive
this_btn[2].isVisible = not isActive
end
end
end
[/lua]
Hi @waelisnothing,
For #1, we’ll still need to see your widget code and perhaps some of the surrounding code as well. The error hints that you’re attempting to “fill” an object which doesn’t exist.
For #2, this means that “btns_sprt.numChildren” is not a display group containing children, so it’s not giving you back a number, and thus the Lua “for” loop is failing.
Best regards,
Brent
I am using the “widget-v1” lib
Menu button:
[lua]
local goMenu = function()
– Handler that gets notified when the alert closes
local function onComplete( event )
if “clicked” == event.action then
local i = event.index
if 1 == i then
createBlankBase()
display.getCurrentStage():setFocus(nil)
storyboard.gotoScene( “mainMenu”, “crossFade”, 400 )
elseif 2 == i then
– Do nothing; dialog will simply dismiss
end
end
end
– Show alert with Options. Trigger the wipe action * Return to Menu if the user clicks the 1st button.
local alert = native.showAlert( “Return to Menu?”, “Are you sure you want to return to the Menu?”, { “Yes”, “Cancel” }, onComplete )
return true
end
local menuButton = widget.newButton{
left = configPanel.x+87,
top = configPanel.y-85,
default = guiImages…“buttonMenuOff.png”,
over = guiImages…“buttonMenuOn.png”,
onRelease = goMenu
}
[/lua]
Well why #2 works flawlessly on iOS but not Android?
Hello,
Error #2 isn’t coming from the button widget, it’s coming from “slider.lua”…
Brent
Here’s the slider.lua code, but I asked for clarification, why does it work on iOS, but not on Android?
[lua]
module( …, package.seeall )
– Slider, created by Microsheep, microsheep.com
– You can see it working in my game - Fingerless 3D
– Free to use, feel free to change, but please share it with the community
– vars
local slider_sprt = nil
local slides_sprt = nil
local btns_sprt = nil
local isDragging = false
local currSlideIndex = 1
local startPosX = 0
local offsetPosX = 0
local lastPosX = 0
local lastTimeMsec = 0
local dX = 0
local slide_twn = nil
– forward declerations
local touchCb
local slideEndCb
local toggleBtns
local startDrag
local endDrag
local drag
local slideTo
–##################################################################################################
– PUBLIC METHODS
–##################################################################################################
function init()
– vars
slider_sprt = nil
slides_sprt = nil
btns_sprt = nil
isDragging = false
currSlideIndex = 1
startPosX = 0
offsetPosX = 0
lastPosX = 0
lastTimeMsec = 0
dX = 0
slide_twn = nil
– slider_sprt
slider_sprt = display.newGroup()
– slides_sprt
slides_sprt = display.newGroup()
slider_sprt:insert( slides_sprt )
– btns_sprt
btns_sprt = display.newGroup()
slider_sprt:insert( btns_sprt )
– events
slides_sprt:addEventListener( “touch”, touchCb )
--Runtime:addEventListener( “touch”, touchCb )
end
function dispose()
– events
slides_sprt:removeEventListener( “touch”, touchCb )
--Runtime:removeEventListener( “touch”, touchCb )
– cancel tween
if ( slide_twn ~= nil ) then
transition.cancel( slide_twn )
slide_twn = nil
end
– btns_sprt
local thisBtn = nil
while ( btns_sprt.numChildren > 0 ) do
thisBtn = btns_sprt[1]
for j=1, thisBtn.numChildren do
thisBtn:remove( 1 )
end
thisBtn:removeEventListener( “tap”, tapCb)
btns_sprt:remove( thisBtn )
end
slider_sprt:remove( btns_sprt )
btns_sprt = nil
– slides_sprt
slides_sprt = display.newGroup()
local thisSlide_sprt = nil
while ( slides_sprt.numChildren > 0 ) do
--thisSlide_sprt.dispose()
thisSlide_sprt = slides_sprt[1]
slides_sprt:remove( thisSlide_sprt )
end
slider_sprt:remove( slides_sprt )
slides_sprt = nil
– slider_sprt
– vars
end
function getSprite()
return slider_sprt
end
function getSlide( slideIndex )
return slides_sprt[slideIndex]
end
function addSlide( slide_sprt, btn_sprt )
– slide
slides_sprt:insert( slide_sprt )
slide_sprt.x = (slides_sprt.numChildren - 1) * display.contentWidth
– btn
if ( btn_sprt ~= nil ) then
btns_sprt:insert( btn_sprt )
btn_sprt:addEventListener( “tap”, tapCb)
toggleBtns( 1 )
end
end
–##################################################################################################
– PRIVATE METHODS
–##################################################################################################
function touchCb( evt )
if (evt.phase == “began”) then
startDrag( evt )
elseif (evt.phase == “ended”) then
endDrag( evt )
else
drag( evt )
end
end
function slideEndCb( evt )
– currSlideIndex
currSlideIndex = 1 + math.floor( (-slides_sprt.x + 0.5 * display.contentWidth) / display.contentWidth )
– offsetPosX
offsetPosX = slides_sprt.x
– btns
toggleBtns( currSlideIndex )
end
function tapCb( evt )
local btnId = evt.target.id
--toggleBtns( btnId )
slideTo( btnId, 2500 )
end
function toggleBtns( activeBtnId )
local this_btn = nil
local isActive = false
for i=1, btns_sprt.numChildren do
this_btn = btns_sprt[i]
if ( this_btn ~= nil ) then
isActive = ( i == activeBtnId )
this_btn[1].isVisible = isActive
this_btn[2].isVisible = not isActive
end
end
end
function startDrag( evt )
isDragging = true
– startPosX
--startPosX = evt.xStart
startPosX = evt.x
– offsetPosX
offsetPosX = slides_sprt.x
– lastPosX and lastTimeMsec
lastPosX = evt.x
lastTimeMsec = system.getTimer()
– cancel tween
if ( slide_twn ~= nil ) then
transition.cancel( slide_twn )
slide_twn = nil
end
end
function endDrag( evt )
isDragging = false
– calc speed
local dT = system.getTimer() - lastTimeMsec
if (dT < 10) then dT = 10 end
local speed = dX / ( 0.001 * dT )
– targetSlideIndex
local targetSlideIndex = currSlideIndex
if (math.abs(speed) > 500) then
– speed
targetSlideIndex = targetSlideIndex - (speed / math.abs(speed))
else
targetSlideIndex = 1 + math.floor( (-slides_sprt.x + 0.5 * display.contentWidth) / display.contentWidth )
speed = 1000
end
– min / max slide index
if ( targetSlideIndex <= 0 or targetSlideIndex > slides_sprt.numChildren) then
targetSlideIndex = currSlideIndex
speed = 1000
end
– slide tween
slideTo( targetSlideIndex, speed )
end
function drag( evt )
if ( false == isDragging ) then
startDrag( evt )
startPosX = evt.x
end
– lastPosX and lastTimeMsec
dX = evt.x - lastPosX
lastPosX = evt.x
lastTimeMsec = system.getTimer()
– pos
--slides_sprt.x = offsetPosX + evt.x - evt.xStart
slides_sprt.x = offsetPosX + evt.x - startPosX
end
function slideTo( targetSlideIndex, speed )
– cancel tween
if ( slide_twn ~= nil ) then
transition.cancel( slide_twn )
slide_twn = nil
end
– tween
local targetPosX = (targetSlideIndex - 1) * display.contentWidth
local timeMsec = 1000 * math.abs( (slides_sprt.x + targetPosX) / speed )
--slide_twn = transition.to( slides_sprt, { x = -targetPosX, time = timeMsec, transition = easing.inOutQuad, onComplete = slideEndCb } )
slide_twn = transition.to( slides_sprt, { x = -targetPosX, time = timeMsec, onComplete = slideEndCb } )
end
[/lua]
Hi @waelisnothing,
I don’t really know why it would fail on Android but not iOS, unless there’s some issue with your “module( …, package.seeall )” inclusion. This should not be used any longer, as it was long ago deprecated in Lua.
Brent